Boyer David W.
Officer · NBIX
As of 2026-09-16, Boyer David W. has 34 Form 4 transactions on record across 1 company — 20 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
- Direct $1.3M
- Indirect $0
| NBIX | direct | 8,722 sh | $1.3M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-14 | NBIX | Sale | 826 @ $157.45 | $130K | −8.7% of holding | 8,722 | Form 4 |
| 2026-05-26 | NBIX | Sale | 3,888 @ $156.64 | $609K | −33.3% of holding | 7,799 | Form 4 |
| 2025-02-13 | NBIX | Sale | 955 @ $116.79 | $112K | −25.1% of holding | 2,854 | Form 4 |
| 2025-02-13 | NBIX | Sale | 830 @ $116.69 | $97K | −18.9% of holding | 3,565 | Form 4 |
| 2025-02-10 | NBIX | Sale | 700 @ $118.31 | $83K | −25.9% of holding | 1,998 | Form 4 |
| 2025-01-31 | NBIX | Sale | 1,104 @ $152.94 | $169K | −44.6% of holding | 1,369 | Form 4 |
28 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-09-11 | NBIX | Withheld for tax | 1,936 | 9,548 | Form 4 |
| 2026-09-11 | NBIX | Award / grant | 3,587 | 11,484 | Form 4 |
| 2026-02-13 | NBIX | Withheld for tax | 5,378 | 11,581 | Form 4 |
| 2026-02-13 | NBIX | Withheld for tax | 978 | 6,991 | Form 4 |
| 2026-02-13 | NBIX | Withheld for tax | 832 | 6,158 | Form 4 |
| 2026-02-13 | NBIX | Award / grant | 9,968 | 16,959 | Form 4 |
| 2026-02-13 | NBIX | Award / grant | 5,479 | 5,479 | Form 4 |
| 2026-02-13 | NBIX | Award / grant | 31,234 | 31,234 | Form 4 |
| 2026-02-13 | NBIX | Option exercise | 1,811 | 7,969 | Form 4 |
| 2026-02-13 | NBIX | Option exercise | 1,541 | 6,990 | Form 4 |
| 2026-02-13 | NBIX | Option exercise | 1,811 | 1,812 | Form 4 |
| 2026-02-13 | NBIX | Option exercise | 1,541 | 3,083 | Form 4 |
| 2026-02-12 | NBIX | Withheld for tax | 864 | 5,449 | Form 4 |
| 2026-02-12 | NBIX | Option exercise | 1,600 | 4,801 | Form 4 |
| 2026-02-12 | NBIX | Option exercise | 1,600 | 6,313 | Form 4 |
| 2026-01-31 | NBIX | Withheld for tax | 1,189 | 4,713 | Form 4 |
| 2026-01-31 | NBIX | Option exercise | 2,096 | 0 | Form 4 |
| 2026-01-31 | NBIX | Option exercise | 2,096 | 5,902 | Form 4 |
| 2025-02-13 | NBIX | Option exercise | 1,541 | 4,395 | Form 4 |
| 2025-02-13 | NBIX | Option exercise | 1,811 | 3,809 | Form 4 |
| 2025-02-13 | NBIX | Option exercise | 1,541 | 4,624 | Form 4 |
| 2025-02-13 | NBIX | Option exercise | 1,811 | 3,623 | Form 4 |
| 2025-02-12 | NBIX | Award / grant | 6,401 | 6,401 | Form 4 |
| 2025-02-12 | NBIX | Award / grant | 34,153 | 34,153 | Form 4 |
| 2025-02-08 | NBIX | Option exercise | 1,329 | 2,698 | Form 4 |
| 2025-02-08 | NBIX | Option exercise | 1,329 | 0 | Form 4 |
| 2025-01-31 | NBIX | Option exercise | 2,096 | 2,096 | Form 4 |
| 2025-01-31 | NBIX | Option exercise | 2,096 | 2,473 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.